black screen

[kenx00x]

I was playing rainbow six siege and suddenly my screen froze and a checkerboard pattern on it, i could still hear my friends and they could hear me. After a second or 2 my screen went black. I tried restarting my pc but the screen was black. I put my old gpu in it and my screen was on. I tried switching to my better gpu again and I still didn't have an output.

 

The gpu that isnt working is a r9 390 and my old gpu is a r7 260x

 

please help me, thanks

[utsa1111]

Clean it. Remove the heat sink. Reapply thermal paste. Re apply the thermal pads. Make sure of the thickness you are using in thermal pad. Just test it out. It might work. 

Better than nothing!